/Engine/Plugins/Editor/ObjectMixer/ObjectMixer/Source/ObjectMixer/Public/Views/List/Modes/OutlinerColumns/ObjectMixerOutlinerColumns.h
virtual void SortItems ( [TArray](API\Runtime\Core\Containers\TArray)< FSceneOutlinerTreeItemPtr > & OutItems, const [EColumnSortMode::Type](API\Runtime\Slate\Widgets\Views\EColumnSortMode__Type) SortMode ) const